Reading a Nisio Isin story often takes a lot of brainpower due to the sheer amount of text, subtext, references and writer notes, but this manga takes it to the extreme. Almost every page has a note to explain what is going on. From an artistical point of view it's quite impressing to see the love and attention Nisio Isin puts into writing his stories. But from a reader perspective it doesn't make for such an enjoyable experience.
Being in a cypher schools, you're prestented with a lot of cyphers that the caracters play with. But while a few cyphers can be decoded on your own, most of them require a stupid amount of knowledge about japanese culture, japanese alphabet and a lot of other languages (braille, music,..). It does a really good job at portraying how talented the caracters are but I guess I would've liked some cyphers to be a bit easier since it's fun to decode them.
On the caracter side, it's still early in the story to have fully fledged out caracters but Nisio Isin always delivers at making you attached to complex caracters.
The art is pretty basic for the most part but some panels are absolutely gorgerous.
I'm not sure if I should recommend you to read this. The cyphers and their explaination are quite hard to understand but the story remains quite entertaining.
